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Patent Litigation Patent Validity Inter Partes Review (IPR) Proceeding

Venable LLP

Federal Circuit Interprets IPR Estoppel Under 35 U.S.C. § 315(e)(2) to Permit at Trial Invalidity Theories Based on Prior Use or...

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On May 7, 2025, the Federal Circuit issued a decision in Ingenico, Inc. v. IOENGINE, LLC, effectively holding that 35 U.S.C. § 315(e)(2) estoppel cannot preclude an IPR petitioner from advancing in a district court trial an...more

Sheppard Mullin Richter & Hampton LLP

Breaking Down the Bifurcated PTAB Review Process: What the USPTO’s Recent FAQ Drop Reveals

On March 26, 2025, the U.S. Patent and Trademark Office released a memorandum introducing a new interim process for handling institution decisions in inter partes reviews (IPRs) and post-grant reviews (PGRs). The Office just...more

Proskauer - The Patent Playbook

Federal Circuit Affirms Stem Cell Product-by-Process Claims: Lessons in Claim Construction and Inherency from Restem LLV v. Jadi...

The Federal Circuit issued a precedential opinion on March 4, 2025, that serves as valuable guidance for product-by-process claims, particularly in the context of inherency in claim construction. In Restem, LLC v. Jadi Cell,...more

Venable LLP

Spotlight On: Actemra® (tocilizumab) / Tofidence™ (tocilizumab-bavi) / Tyenne® (tocilizumab-aazg) / Avtozma® (tocilizumab-anoh) -...

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Tocilizumab Challenged Claim Types in IPRs: Claims are counted in each IPR, so claims from the same patent challenged in multiple IPRs are counted more than once. Within each IPR, claims are counted only once, whether they...more

Sterne, Kessler, Goldstein & Fox P.L.L.C.

Recent Updates at the U.S. Patent Trial and Appeal Board

Recent changes at the U.S. Patent Trial and Appeal Board (PTAB) have brought uncertainty to inter partes review and post-grant review practitioners before the U.S. Patent and Trademark Office (PTO). These procedural and...more

Venable LLP

Spotlight On: Herceptin® (trastuzumab) / Ogivri® (trastuzumab-dkst) / Herzuma® (trastuzumab-pkrb) / Ontruzant® (trastuzumab-dttb)...

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Trastuzumab Challenged Claim Types in IPR and Litigation: Claims include those challenged in litigations and IPRs. Claims are counted in each litigation and IPR, so claims from the same patent challenged in multiple...more

Venable LLP

Spotlight On: Rituxan® (rituximab) / Truxima® (rituximab-abbs) / Ruxience® (rituximab-pvvr) / Riabni™ (rituximab-arrx) - April...

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Rituximab Challenged Claim Types in IPR and Litigation: Claims include those challenged in litigations and IPRs. Claims are counted in each litigation and IPR, so claims from the same patent challenged in multiple...more

McDermott Will & Emery

The Clear and Unmistakable Standard for Applying Prosecution Disclaimer

The US Court of Appeals for the Federal Circuit found that a district court misconstrued claim terms based on a misapplication of the clear and unequivocal disavowal standard and vacated its noninfringement decision. Maquet...more

Holland & Knight LLP

New Guidance Regarding Fintiv Discretionary Denial at the PTAB

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Two recent memoranda from the Patent Trial and Appeal Board (PTAB or Board) have sought to clarify the factors by which boards will evaluate discretionary denial under Fintiv. This guidance follows the U.S. Patent and...more

Hudnell Law Group

PTAB Recalibrates Review: New Discretionary Denial Framework and Pre-Institution Reform

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In less than a month, the United States Patent and Trademark Office (“USPTO”) has dramatically reformed its policies and procedures for exercising its discretion to deny institution of AIA post-grant proceedings. First, on...more

McDermott Will & Emery

Validity Analysis for Product-by-Process Claim Focuses on Product

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The US Court of Appeals for the Federal Circuit affirmed a Patent Trial & Appeal Board patentability finding, explaining that an anticipation analysis for a product-by-process claim focuses on the product and not the process....more

Jones Day

PTAB Decides Concurrent IPR and PGR Petitions After Resolving Priority Date Dispute

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In anticipating a dispute over whether the America Invents Act would apply, Petitioner MPL Brands NV, Inc. (“MPL”) filed concurrent petitions for both inter partes review and post-grant review of U.S. Patent No. 11,932,441...more

Venable LLP

Spotlight On: Actemra® (tocilizumab) / Tofidence™ (tocilizumab-bavi) / Tyenne® (tocilizumab-aazg) / Avtozma® (tocilizumab-anoh) -...

Venable LLP on

Tocilizumab Challenged Claim Types in IPRs: Claims are counted in each IPR, so claims from the same patent challenged in multiple IPRs are counted more than once. Within each IPR, claims are counted only once, whether they...more

Jones Day

Similar Claims in Prior IPR Petition Leads to Denial

Jones Day on

The PTAB recently denied institution of inter partes review of a patent directed to deep packet inspection in software defined networks in Juniper Networks, Inc. v. Orckit Corporation, IPR2024-00895. Applying the General...more

Rothwell, Figg, Ernst & Manbeck, P.C.

Federal Circuit Reverses PTAB’s holding of Non-Obviousness of Standard Adopted 3G Technology

The recent decision by the Federal Circuit in Honeywell International Inc. v. 3G Licensing, S.A., issued on January 2, 2025, overturned the Patent Trial and Appeal Board’s (“the Board”) factual and legal holdings in the final...more

Venable LLP

Spotlight On: Actemra® (tocilizumab) / Tofidence™ (tocilizumab-bavi) / Tyenne® (tocilizumab-aazg) - January 2025

Venable LLP on

Tocilizumab Challenged Claim Types in IPRs: Claims are counted in each IPR, so claims from the same patent challenged in multiple IPRs are counted more than once. Within each IPR, claims are counted only once, whether they...more

Knobbe Martens

Bound to Happen: Inherent Property Leaves No Question of Reasonable Expectation of Success

Knobbe Martens on

CYTIVA BIOPROCESS R&D AB V. JSR CORP. - Before Prost, Taranto, and Hughes.  Appeal from the Patent Trial and Appeal Board. Summary: A claim limitation merely reciting an inherent property or result of an otherwise obvious...more

Venable LLP

Spotlight On: Neulasta® (pegfilgrastim) / Fulphila® (pegfilgrastim-jmdb) / Udenyca® (pegfilgrastim-cbqv) / Ziextenzo®...

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Pegfilgrastim Challenged Claim Types in IPR and Litigation: Claims include those challenged in litigations and IPRs. Claims are counted in each litigation and IPR, so claims from the same patent challenged in multiple...more

Venable LLP

Spotlight On: Herceptin® (trastuzumab) / Ogivri® (trastuzumab-dkst) / Herzuma® (trastuzumab-pkrb) / Ontruzant® (trastuzumab-dttb)...

Venable LLP on

Trastuzumab Challenged Claim Types in IPR and Litigation: Claims include those challenged in litigations and IPRs. Claims are counted in each litigation and IPR, so claims from the same patent challenged in multiple...more

Knobbe Martens

Platinum Cannot Stand on Speculation

Knobbe Martens on

Before Moore. Appeal from the Patent Trial and Appeal Board. Summary: Standing based on potential infringement liability requires concrete plans for future activity which will create a substantial risk of future infringement...more

Venable LLP

Spotlight On: Herceptin® (trastuzumab) / Ogivri® (trastuzumab-dkst) / Herzuma® (trastuzumab-pkrb) / Ontruzant® (trastuzumab-dttb)...

Venable LLP on

*Trastuzumab Challenged Claim Types in IPR and Litigation: Claims include those challenged in litigations and IPRs. Claims are counted in each litigation and IPR, so claims from the same patent challenged in multiple...more

Jones Day

Federal Circuit Affirms Claim Construction and How It Applies

Jones Day on

In Pacific Biosciences of California, Inc. v. Personal Genomics Taiwan, Inc., the Federal Circuit recently affirmed two PTAB decisions in IPRs filed by Pacific Biosciences of California, Inc. (PacBio) that challenged a...more

Fish & Richardson

Texas Patent Litigation Monthly Wrap-Up: December 2023

Fish & Richardson on

This post reviews developments from the Northern, Southern, Eastern, and Western Districts of Texas in December 2023. ...more

Akin Gump Strauss Hauer & Feld LLP

District of Delaware Holds That IPR Estoppel Does Not Apply to Device Art

Federal Circuit Judge William Bryson, sitting by designation in the District of Delaware, ruled on summary judgment that inter partes review (IPR) estoppel does not apply to device art, even if the device is cumulative of...more

Proskauer - Minding Your Business

Duty of Candor Continues Before the PTAB or Does it?     

In an unprecedented PTAB decision involving Spectrum Solutions LLC (“Spectrum”) (Petitioner) and Longhorn Vaccines & Diagnostics (“Longhorn”) (Patent Owner), the Board found all five challenged patents invalid and imposed...more

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